disease disrupts disease causes disruption of circadian sleep/wake cycle, REM sleep sleep-wake disorder mental disorder REM sleep behavior disorder https://www.malacards.org/card/rem_sleep_behavior_disorder SCTID:415238003 MEDGEN:199730 ICD10CM:G47.52 MONDO:0005937 UMLS:C0751772 ICD9:780.59 DOID:9091 MESH:D020187 A disorder characterized by episodes of vigorous and often violent motor activity during rem sleep (sleep, rem). The affected individual may inflict self injury or harm others, and is difficult to awaken from this condition. Episodes are usually followed by a vivid recollection of a dream that is consistent with the aggressive behavior. This condition primarily affects adult males. (From Adams et al., Principles of Neurology, 6th ed, p393) EFO:0007462 ICD9:327.42